Hi guys,I'm doing the setup of OPENEMM 2015 R3 following the official guide: OpenEMM-2015_InstallAdminGuide_1.3.2.pdfI've noticed an issue related to the internal smtp, when I test it for the open relay on the major sites, it fails.Trying to test it via telnet I get this behaviour:

This issue makes the internal smtp not usable in a production environment with 25 port open. In the very few minutes that I spent to doing this test, I see in the mail log unexpected bounces to unknown email addresses (foreign connections).There is a way to deny the relay at the RCPT TO: stage with the internal SMTP as other sendmail instances do? (550 5.7.1 <john@somewhere.com>... Relaying denied)